NALMCO Certified Apprentice Lighting Technician (CALT) Practice Exam

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Prepare for the NALMCO Certified Apprentice Lighting Technician Test. Enhance your knowledge with multiple-choice questions, tips, and exam insights to ensure success. Get ready to shine in your exam!

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The amount of electric power a lighting system draws is measured in?

Watts
Ohms
Amps
Volts

The correct answer is: Watts

The amount of electric power a lighting system draws is measured in watts. This unit quantifies the rate at which electrical energy is converted into another form of energy, such as light or heat. In the case of lighting systems, watts indicate how much power is consumed to produce illumination. Understanding the context of watts involves recognizing the broader relationships between voltage (volts), current (amperes), and resistance (ohms) as described by Ohm's Law. Watts are calculated using the formula: Power (in watts) = Voltage (in volts) x Current (in amperes). This highlights that while voltage and current are crucial for determining how power is distributed in the system, the actual consumption or draw of power is succinctly expressed in watts. Recognizing this measurement is essential for any lighting technician. It helps in selecting the appropriate fixtures, calculating energy costs, and ensuring that the electrical systems are adequately rated for the lighting designs being implemented.